Flash Flood Warning 40, NWS Houston/Galveston, TX

Issued

Aug 22, 1998, 7:44 AM CDT (12:44 UTC)

Expired

Aug 22, 1998, 10:45 AM CDT

In force

3 hr

Issued by

NWS Houston/Galveston, TX

Area

Whole counties

County Brazoria County, TX

The Houston radar (KHGX), 48 km from the middle of the area, began a volume at 12:46 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

000 
TTAA00 KHOU 221246
FFWHOU
TXC039-221545-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
744 AM CDT SAT AUG 22 1998

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BRAZORIA COUNTY IN SOUTHEASTERN TEXAS

* UNTIL 1045 AM CDT

* AT 740 AM CDT... NATIONAL WEATHER SERVICE RADAR INDICATED A
  TROPICAL RAIN BAND ASSOCIATED WITH TROPICAL STORM
  CHARLEY FROM WEST COLUMBIA TO ANGLETON TO FREEPORT MOVING
  NORTHWEST AT 20 MPH.

* RADAR AND SATELLITE ESTIMATES INDICATE THAT MORE THAN 5 INCHES OF
  RAIN HAS FALLEN OVER BRAZORIA COUNTY WITH THE RAIN BANDS
  ASSOCIATED WITH TROPICAL STORM CHARLEY.  AN ADDITIONAL 2
  INCHES OF RAIN IS POSSIBLE BY 10 AM.  FLOODING OF CREEKS...
  STREAMS... AND PONDING OF LOW LYING AREAS IS LIKELY AS THESE RAIN
  BANDS TRAIN OVER THE SAME AREA.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY.
THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.  MOVE
TO HIGHER GROUND.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Aug 22, 2:45 AM CDT, 4 hours 59 minutes earlier.

SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
245 AM CDT SAT AUG 22 1998

ALL EYES THIS A.M. ON CHARLEY AS IT PUSHES TOWARDS THE TEXAS
COAST...WITH LANDFALL LOOKING LIKE IT WILL BE CLOSE TO PORT
ARANSAS.

FOR FORECAST TODAY...WOULD LIKE TO ADJUST CURRENT FFA SLIGHTLY
...TRIMING IT FROM THE NE AS CHARLEY MOVES NW INLAND. BELIEVE
FLASH FLOOD THREAT STILL EXISTS SOUTH AND WEST OF A GALVESTON TO
HOUSTON TO BELLVILLE LINE.  HEAVIEST RAINFALL WILL OCCUR
ACROSS IMMEDIATE COAST ALONG BRAZORIA...MATAGORDA...AND JACKSON
COUNTIES WHERE LOCALLY 5 INCHES IS POSSIBLE. THIS IS IN CLOSE
AGREEMENT WITH 94E. HGX 88D IS SHOWING HIGHEST RAINRATES TO BE NEAR
2 INCHES AN HOUR...SOUTH OF FREEPORT.

A FEW CELLS HAVE INDICATED TORNADIC POTENTIAL ACROSS CRP WARNING
AREA TONIGHT AS BANDS PUSH INLAND AND ENCOUNTER FRICTIONAL
CONVERGENCE ALONG COAST.  THEREFORE WOULD LIKE TO WORD ZONES
WITH POSSIBLE TORNADOES ONLY ALONG COAST SOUTH OF GALVESTON.
THIS THREAT SHOULD BE OVER BY LATE MORNING. APPEARS GREATEST THREATS
FOR FORECAST AREA WITH CHARLEY WILL BE SOME COASTAL FLOODING AND
HEAVY RAIN THIS MORNING. TIDE LEVELS AT HIGH TIDE EXPECTED TO
RUN BETWEEN 5 AND 7 FT.

MODELS INITIALIZED TOO FAR SOUTHWEST WITH CHARLEY...HAVE MADE SOME
ADJUSTMENTS TO GUID POPS. DO BELIEVE ATMOS WILL DRY ACROSS
FA SIGNIFICANTLY BY LATE THIS AFTERNOON.

33

SEE CURRENT TPC PRODUCTS AND HLSHOU FOR LATEST TS INFO...

CLL 90/75/93/75 C/E/B/B  6521
IAH 89/75/92/75 T/E/B/B  7421 FFA
GLS 87/79/90/78 TN/E/B/B 8321 FFA...WINDY...POSSIBLE TORNADOES
PSX 85/78/90/78 TN/E/B/B +321 FFA...WINDY...POSSIBLE TORNADOES

Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.